south shore molokai shoreline erosion flooding projects...nov 14, 2018 · community update for...

Community Update for Kapa'akea & Kamiloloa-One Ali'i November 14, 2018

DHHL So. Shore Molokai Shoreline Erosion & Flooding 1

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SouthShoreMolokaiShorelineErosion&FloodingProjects

November14,2018Kaunakakai,Molokai



PurposeofTonight’sMeeting1. TalkwithKapa‘akea &Kamiloloa‐OneAli‘i

HomesteadersAbout…– TheSituation/Problem/Issues–What’sBeenDone–What’sinProgress

2. IntroduceaNewProject– ProjectArea/Scope– Outcomes:WhatWe’llGetFromtheProject– YourParticipation

3. StartGatheringData‐‐MappingExercise– Floodareas,CesspoolOverflow,ShorelineErosion



StartingRight/StartingPointsThePlanningOffice/Planners

• Whatisplanningkuleana?• DifferentTypesofPlans• StaffAssignments

WaterComingFromMauka DowntoMakai• Stormwater• Drainage• Flooding

WaterComingUpFromMakai• SeaLevelRise• KingTides/SpringTides• StormSurge• Saltwaterintrusion/inundation



FloodHazardMap



SeaLevelRiseExposureArea(SLR‐XA)1.1FootScenario



SeaLevelRiseExposureArea(SLR‐XA)3.2FootScenario



ChronologyofEvents

• Traditionally—healthyforest,2streamsdrainedintotheKapa‘akea wetland(swamp,marsh,saturated),multiplespringsandfishponds

• 1900’s– AmericanSugarCo.Map‐‐Kapa‘akea asasaltmarsh• 1950’s–WetlandwasfilledtocreateKapa‘akea subdivision• 1961– SeriousfloodinginKapa‘akea (2‐3feet)• 1976– ArmyCorpsofEngineersEISforFloodControl• 2001– HeavyKonarainstormcausedfloodingwithsilt• 2006– DHHLFloodReductionStudy• 2006‐2011– DHHLKapa‘akea DrainageImprovementsproject



CompletedProject:Kapa‘akea DrainageImprovements

• 2006:Kapa‘akea FloodReductionStudy• 2007– 2011:Kapa‘akea DrainageImprovementsProjectdesign&construction– Lowered&gradededgeofroadway;– PlacedconcretefordsintwolocationsonKapa‘akea LoopRoad;

– linedditchesw/geotextilefabricmeshforerosioncontrol



WithNoAction–every10yearswewillseeafloodlikethis

WithNoAction–every100yearswe will seeafloodlikethis

Kapa‘akea FloodReductionStudyFindings



OngoingProject:Kapa‘akea FloodMitigationImprovements

• 2016:FinalEnvironmentalAssessmentcompleted

• Oct–Dec.2018:PreparingapplicationforaFEMAHazardMitigationGranttofundproject

• **Needmoreinformationaboutpastfloodingevents– dates,extentofdamages,photos– forgrantapplication



OngoingProject:CommunityResilience&

DisasterPreparednessPlanning

• May2015:UH‐DURPPracticumon“CoastalResilienceforDHHLCommunities”developeda“NativeHawaiianCulturallyBasedCommunityResilienceManual”

• Aug.2015:DHHLconductedaone‐day“MolokaiCoastalHomesteadResilienceWorkshop”withhomesteadleaders

• NEXTSTEP:August/Sept2019DHHLwillconducta2‐dayworkshopforKalama‘ula anda2‐dayworkshopforKapa‘akea‐Kamiloloa‐OneAli‘i focusedontraditionalknowledgeandpreparingacommunityresilienceplan



WhatWeLearned

Majorgapsininformation Agencyresponses—band‐aid,capitalintensive,largeconcreteprojects

Asforestbecamedenuded,couldn’tholdwater,moreflooding;cesspoolsoverflow

Sealevelriseand“KingTides”areincreasing Shorelineerosioncuttingintolots Needanddesiretobringbestpractices,bestscience,bestinformationtogethersowecandeterminethebestcourseofaction.



YouAreAttheCenter

63Lessees ManyareKupuna Olderhomes—susceptibletodamage What’sgoingtohappentomyhouse? HowcanIkeepmyfamilysafe? Howquicklywillsealevelrise? HowlongdoIhavetomakeadecision? Whataboutmysuccessors? HowwillIpayforanyofthis? Insurance,permits,etc.



New:SouthMolokaiShorelineErosionManagementPlan

ProjectDescription:PrepareaCoastalErosionAssessmentandManagementPlanScope:Literatureresearch,GISanalysis,fieldandaerialsurveys,communityengagement,dataassessment.Geography:2.5milesofDHHLcoastalfromKapa‘akea toMakakupa‘ia ahupua‘a



New:SouthMolokaiShorelineErosionManagementPlan

OutcomesandBenefits• Betterunderstandshorelineerosion• Identifywhatcouldhappeninthefuture• Identifymanagementstrategiesandbestpractices

• Educatehomesteadersonthecauses&responsestoshorelineerosion

• Betterinformationtomakeaninformeddecisionusingplace‐baseddata



SouthMolokaiShorelineErosionManagementPlan

CurrentStatus• Hiredplanningconsultantswithcoastalerosionmanagementexpertise

• Aerialsurveyscompleted• Schedulingsitevisits,fieldwork&interviews• SchedulingaseriesofcommunitymeetingsstartinginJanuary2019

• Iterativeprocess—wewillbringinformation&findingsbacktocommunitymultipletimes



MappingExerciseYou,thehomesteadresidents,aretheexperts!• You’vebeengiventhreesetsofcoloreddots(red,greenandblue)

• Onanymap,place– aRED dotwhereyouhaveseenthepondingofwater

– AGREEN dotwherecesspoolshaveoverflowed– ABLUE dotwhereyouhaveseenshorelineerosion

• It’soktohavemultipledotsononespot– thatwayweknowthatit’sa“hotspot”



DiscussionQuestions

1. HowcantheShorelineErosionManagementPlanhelpYOU?

2. HowcanShorelineErosionManagementPlanhelpyourHOMESTEADCOMMUNITY?

3. WhatistheBESTWAYforyouTOBEINVOLVEDindevelopingtheShorelineErosionManagementPlan?

4. WhataretheBESTDAYS/TIMEStomeet?5. OTHERComments/Questions?



ClosingThoughts

• Thesituationdidn’tgetthiswayovernight• Fixingitwilltakesometime• It’sonlytoolateifwedon’tstartnow!• Youaretheexpertsontheground• Theplan&recommendationswillonlybeasgoodasthedataweputintothem

• Wehavetoanalyzeinformationfromasystem‐wideview—shorelinesaresystems



NextSteps

• Ifyouhaveinformationonerosionandfloodingyou’dliketoshare,pleaseletusknowonthesign‐upsheet

• Youcanhelpbyreportingincidentsofflooding&erosiontotheMolokaiDistrictOffice&thePlanningOffice–pleasedocument(date&time)&takepictures.



Pleasesendyourquestions,incidentreports,etc.to:

[email protected]

Mahalo!

south shore molokai shoreline erosion flooding projects...nov 14, 2018 · community update for...

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